Digital LDR Module

The Digital LDR Module is used to detect the presence of light and measure light intensity. The module outputs high when light is present and low when it is dark. Sensitivity can be adjusted using the onboard potentiometer to set the required threshold. Since the output is digital, it easily indicates whether light is detected for further control actions.

The module includes an M3 mounting hole for easy installation. It features a photosensitive LDR with high sensitivity commonly used for ambient brightness detection. Power and status LEDs indicate module activity.

How it works:
1. When the ambient light or light intensity reaches the set threshold, the DO pin outputs high. When the external light intensity is below the threshold, DO outputs low.
2. The digital output (D0) connects directly to a microcontroller for high or low TTL detection to sense ambient light changes.
3. The DO output can directly drive a relay module, enabling photoelectric switching applications.

Pin Details:
VCC → 3.3V to 5V DC
GND → Ground
DO → Digital Output

Features:

• LM393 based design
• Detects ambient brightness and light intensity
• Adjustable sensitivity using onboard potentiometer
• Digital output 0V to 5V with adjustable trigger level
• Includes power and output indicator LEDs

Package Includes:

• 1 x LDR Module